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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/44462] Redundant looping pure functions whose return value is dead are not optimized out
Date: Wed, 09 Jun 2010 09:11:00 -0000 [thread overview]
Message-ID: <20100609091043.24582.qmail@sourceware.org> (raw)
In-Reply-To: <bug-44462-176@http.gcc.gnu.org/bugzilla/>
------- Comment #3 from rguenther at suse dot de 2010-06-09 09:10 -------
Subject: Re: Redundant looping pure functions
whose return value is dead are not optimized out
On Tue, 8 Jun 2010, pinskia at gcc dot gnu dot org wrote:
> ------- Comment #2 from pinskia at gcc dot gnu dot org 2010-06-08 20:10 -------
> >Why do we remove register LHS in DCE again?
>
> Because it reduces the amount of garbage produced by expand :).
Which means the expander could drop it ...
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44462
next prev parent reply other threads:[~2010-06-09 9:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-08 7:32 [Bug tree-optimization/44462] New: " hubicka at gcc dot gnu dot org
2010-06-08 8:49 ` [Bug tree-optimization/44462] " rguenth at gcc dot gnu dot org
2010-06-08 20:10 ` pinskia at gcc dot gnu dot org
2010-06-09 9:11 ` rguenther at suse dot de [this message]
2010-06-09 10:30 ` hubicka at ucw dot cz
[not found] <bug-44462-4@http.gcc.gnu.org/bugzilla/>
2021-05-05 13:49 ` rguenth at gcc dot gnu.org
2021-05-10 9:45 ` rguenth at gcc dot gnu.org
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